Hi again,
I have another problem along the same vein so I don't think I should create a
new topic though feel free to correct me if I am wrong:
How can I deactivate my GUI button while the sensor attempts to connect and
re-active the button only if the connection attempt has failed and been aborted?
Here's what I tried unsuccessfully in the callback for the connect button (the
following code is fltk but should be applicable to any GUI library):
Code:
_connectButton->deactivate();
if(_scene->connectSensor())
{
_disconnectButton->activate();
}
else
{
_connectButton->activate();
}
The problem is _scene->connectSensor() is running in a thread, so the main
thread sees false for the return of connectSensor() and re-activates the
connectButton.
Note that _scene inherits from osgViewer::CompositeViewer and Fl_Gl_Window. I
have already tried making it inherit from OpenThreads::Thread but when I try to
re-implement the run() method, I get a conflict between CompositeViewer::run()
and Thread::run(). I have thought about having my GUI poll the state of the
sensor's connection to check if it has finished, but I'd like to know if there
is a more elegant solution that escapes me.
As always, any assistance would be much appreciated.
Thanks!
Andrew[/code]
------------------
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http://forum.openscenegraph.org/viewtopic.php?p=47196#47196
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